semaphore

package

v0.0.0-...-c12452b Latest Latest Go to latest Published: Apr 25, 2024 License: GPL-3.0 Imports: 1 Imported by: 11

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Package semaphore contains an implementation of a counting semaphore.

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type Semaphore struct {
	C chan struct{}
	// contains filtered or unexported fields
}

Semaphore is a counting semaphore. It must be initialized before use.

func NewSemaphore(size int) *Semaphore

NewSemaphore creates a new semaphore.

func (obj *Semaphore) Close()

Close shuts down the semaphore and releases all the locks.

func (obj *Semaphore) Init(size int)

Init initializes the semaphore.

func (obj *Semaphore) P(n int) error

P acquires n resources.

func (obj *Semaphore) V(n int) error

V releases n resources.